People who enter positive antigen test results to the HSE portal will not be eligible for a recovery Digital Covid Certificate.
From tomorrow, people aged between 4 and 39-years-old who test positive on an antigen test can upload their result and list their close contacts through the HSE's website.
The HSE says in order to ensure misuse is limited, anyone wishing to obtain a recovery cert will need to get a PCR test or professionally administered antigen test.
Head of the Vaccination Programme Damien McCallion says other safe-guarding measures were considered.
"In any self-testing system you're reliant on the person to give the information.
"It's important to remember the purpose of it - the purpose is so you can give the person the public health advice - identify the close contacts and give them the public health advice.
"So it isn't for any other purpose."